We recently purchased a 2017 Toyota Sienna AWD van and gave my wife's 2WD Sienna to our daughter. My wife has several times experienced some significant hesitation when punching it to get out into traffic. Engine roars but car doesn't seem to get going quickly. She never had that issue with the 2WD Sienna which was a 2014. Had it back to the dealer but they said everything checked out OK. Do you think it may be due to the drive train differences in the AWD vs 2WD. Thanks in advance for you thoughts on this.